A games necklace is teleportation jewellery created by casting enchant level 1 jewellery on a sapphire necklace. It can be used eight times before crumbling to dust. Only games necklaces with eight charges or one charge (shown in brackets) may be traded to other players on the Grand Exchange, but any may be traded to other players via the trade interface.
It currently costs 365 coins per teleport. If the player sells the necklace with one charge on the Grand Exchange, 4834 coins are gained, as well as 7 free teleports.
After helping the companions in Temple Trekking to a total level of 500 or higher, it will unlock a teleport to Burgh de Rott on the necklace.
The games necklace can be used as an effective banking method, as there is a bank chest just south of Troll Invasion. Completing the quest A Shadow over Ashdale unlocks an even better banking method, since the necklace teleports the player right in front of the bank chest.